In depth comparison and review of Erato RIO 3 and KEF Mu3. Compare design, audio features, functions and other important specifications to easily choose the right headphones for you. Our goal is to help you uncover differences between the products and find the headphones that will best fit your needs.
| DESIGN AND DIMENSIONS | Erato RIO 3 | KEF Mu3 |
|---|
| Product Type | True wireless earphones - Bluetooth - wireless | True wireless earphones - Bluetooth - wireless | |
|---|---|---|---|
| Height | 4.6 cm | - | |
| Width | 5.1 cm | - | |
| Depth | 3.4 cm | - | |
| Weight | 14 g | - | |
| Dimensions & Weight Details | - | Earbud: 1.75 cm x 2.63 cm x 2.45 cm / 5.8 g Charging case: 6.2 cm x 5.2 cm x 3.35 cm / 46.8 g |
|
| Colour | Yellow | Black | Turquoise | Green | Red | Silver | Silver grey | |
| Protection | Sweat-resistant, IPX5, water-resistant | Splashproof | |
| Recommended Use | Portable electronics | Portable electronics | |
| Bluetooth Range (Operating Distance) | 10 m | 10 m | The maximum operating distance of both headphones is the same. |
| SOUND QUALITY | Erato RIO 3 | KEF Mu3 |
|---|
| Headphones Form Factor | In-ear | In-ear | |
|---|---|---|---|
| Connectivity Technology | Wireless | Wireless | |
| Wireless Technology | Bluetooth | Bluetooth | |
| Bluetooth Version | Bluetooth 4.2 | Bluetooth 5.0 | KEF Mu3 have a more advanced version of Bluetooth than Erato RIO 3. |
| Bluetooth Profiles | Hands-Free Profile (HFP), Headset Profile (HSP), Advanced Audio Distribution Profile (A2DP), Audio/Video Remote Control Profile (AVRCP) | - | |
| Bluetooth Audio Codec | SBC, AAC, aptX | SBC, AAC | |
| Active Noise Cancelling | - | Yes | KEF Mu3 are equipped with active noice cancellation. |
| Sound Output Mode | Stereo | Stereo | |
| Frequency Response | 20 - 20000 Hz | 20 - 20000 Hz | Both headphones offer the same frequency response. |
| Max Input Power | - | 5 mW | |
| Sensitivity | 100 dB | 104 dB/mW | KEF Mu3 have higher sensitivity than Erato RIO 3. |
| Impedance | 32 Ohm | 16 Ohm | |
| Diaphragm | 14.2 mm | 8.2 mm | Erato RIO 3 have a thicker diaphragm than KEF Mu3. |
| MICROPHONE | Erato RIO 3 | KEF Mu3 |
|---|
| Form Factor | Built-in | Built-in | |
|---|---|---|---|
| Microphone Operation Mode | Omni-directional | - | |
| Sensitivity | -38 dB | - |
| REMOTE CONTROL | Erato RIO 3 | KEF Mu3 |
|---|
| Controls | Volume, power on/off, answer/end, play/pause, next/previous track, pair mode | Multiple function button |
|---|
| BATTERY AND CHARGING | Erato RIO 3 | KEF Mu3 |
|---|
| Battery Type | Headphone battery rechargeable | Headphone battery rechargeable - Lithium Ion | |
|---|---|---|---|
| Battery Capacity | 130 mAh | 50 mAh | Erato RIO 3 have a higher battery capacity than KEF Mu3. |
| Battery Life | 8 hour(s) | 9 hour(s) | KEF Mu3 lasts longer on a single charge than the Erato RIO 3. |
| Battery Life Details | Continuous playback: up to 6 hours Continuous talk: up to 8 hours |
Continuous playback (noise cancelling ON): up to 9 hours Continuous playback (with included charging case): up to 24 hours |
|
| Included Qty | 2 | 2 |
| OTHERS | Erato RIO 3 | KEF Mu3 |
|---|
| Included Accessories | - | 4 pairs of silicone ear tips, USB-C charging cable, charging case (350 mAh) | |
|---|---|---|---|
| Compliant Standards | - | IPX5 |
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